(2)
AMM 32-00-30/201, Landing Gear Door Locks
(3)
AMM 32-09-02/201, Air/Ground Relay System
(4)
WDM 32-51-11, Nose Gear Steering
B.
Access
(1)
Location Zone
715 Nose Landing Gear
C.
Prepare for the Removal
S 492-036
WARNING: MAKE SURE THE GROUND LOCKS AND THE STEERING LOCKOUT PIN ARE
_______ INSTALLED ON THE NOSE AND MAIN LANDING GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR OR TURN OF THE NOSE WHEEL CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(1) Make sure the ground locks and steering lockout pin are installed on the nose and main landing gear (AMM 09-11-00/201).
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32-61-01
ALL ú ú 01 Page 201 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
P37 PANEL
BOX PULL
SEE A
FWD
(2 LOCATIONS MOUNTING BOLT EACH SWITCH) (2 LOCATIONS SENSOR EACH SWITCH) NUT COUPLING NUT
PRIMARY SQUAT SENSOR (S800, ON RIGHT SIDE OF MOUNTING BRACKET) CONDUIT
SQUAT SENSOR (S801, ON LEFT SIDE OF MOUNTING BRACKET) ALTERNATE
FWD
A
Installation of the Squat Sensor for the Nose Landing Gear
Figure 201
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ALL ú ú 01 Page 202 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 492-038
WARNING:_______MAKE SURE THE DOOR LOCKS ARE INSTALLED ON THE NOSE GEAR. FAST MOVEMENT OF THE DOORS FOR THE LANDING GEAR CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2)
Install the door locks for the nose landing gear (AMM 32-00-30/201).
D.
Remove the Squat Sensor
S 042-053
WARNING: MAKE SURE YOU PREPARE THE AIRPLANE FOR THE AIR MODE BEFORE YOU
_______ OPEN THE CIRCUIT BREAKERS THAT FOLLOW. THE AUTOMATIC OPERATION OF THE AIRPLANE SYSTEMS IN THE AIR MODE CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(1)
Prepare the airplane for the air mode (AMM 32-09-02/201).
S 862-004
(2)
For the alternate sensor removal, open this circuit breaker on the overhead circuit breaker panel, P7, and attach a DO-NOT-CLOSE tag:
(a)
7F23, LANDING GEAR DSP & CONT ALTN
S 862-005
(3)
For the primary sensor removal, open this circuit breaker on the overhead circuit breaker panel, P7, and attach a DO-NOT-CLOSE tag:
(a)
7F22, LANDING GEAR DSP & CONT PRI
S 032-055
(4)
Disconnect the wires for the sensor:
(a)
Get access to the terminal strip through the control panel for the nose landing gear, P37.
(b)
Remove the sensor leads from the terminal strip (WDM 32-51-11).
(c)
Carefully remove the terminal lugs from the sensor leads.
(d)
Prepare a line that is longer than the conduit assembly to help you install the sensor leads.
NOTE: This line will help you pull the sensor wires through
____ the conduit, during the installation.
(e)
Attach the line to the end of the sensor wires.
(f)
Remove the cover from the pull box and pull the sensor leads down to the box.
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